// rollover
if (document.images) {

//mouse on
introon = new Image();  
introon.src = "images/intro_on.gif";

currenton = new Image();  
currenton.src = "images/current_on.gif";

 
wineon = new Image();  
wineon.src = "images/wine_on.gif";

vineyardon = new Image();  
vineyardon.src = "images/vineyard_on.gif";

elktonon = new Image();  
elktonon.src = "images/elkton_on.gif";

substainon = new Image();  
substainon.src = "images/substain_on.gif";

peopleon = new Image();  
peopleon.src = "images/people_on.gif";

 

//off
introoff = new Image();  
introoff.src = "images/intro_off.gif";

currentoff = new Image();  
currentoff.src = "images/current_off.gif";

wineoff = new Image();  
wineoff.src = "images/wine_off.gif";


vineyardoff = new Image();  
vineyardoff.src = "images/vineyard_off.gif";


elktonoff = new Image();  
elktonoff.src = "images/elkton_off.gif";


substainoff = new Image();  
substainoff.src = "images/substain_off.gif";

peopleoff = new Image();  
peopleoff.src = "images/people_off.gif";



}



function imgOn(imgName) {

if (document.images) {
document[imgName].src = eval(imgName + "on.src");
}
}

function imgOff(imgName) {
if (document.images) {
document[imgName].src = eval(imgName + "off.src");
}
}